3 Definitions and abbreviations

29.5773GPP5G SystemIP Short Message Gateway and SMS Router For Short Message ServicesRelease 18Stage 3TS

3.1 Definitions

For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 [1] and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in 3GPP TR 21.905 [1].

Gateway MSC For Short Message Service (SMS‑GMSC): function of an MSC capable of receiving a short message from an SC, interrogating an HLR/HSS/UDM for routing information and SMS info, and delivering the short message to the VMSC/SGSN/MME/SMSF of the recipient MS/UE.

IP-Short-Message-Gateway (IP-SM-GW): function responsible for protocol interworking between the IP-based UE and the SC.

3.2 Abbreviations

For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 [1] and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in 3GPP TR 21.905 [1].

IP-SM-GW IP Short Message Gateway

SM MO Short Message Mobile Originated

SM MT Short Message Mobile Terminated

SMSF Short Message Service Function